\begin{tikzpicture}
  \tikzset{
    matrixstyle/.style={
      matrix of nodes, 
      nodes in empty cells, 
      matrix anchor=north west,
      column 1/.style={text width=1em},
      column 2/.style={text width=12em},
      column 3/.style={text width=12em},
      nodes={draw, anchor=west, minimum height=2em}},
    matrix2style/.style={
        matrix of nodes, 
        nodes in empty cells, 
        matrix anchor=north west,
        nodes={draw, anchor=west, minimum height=2em,text width=2em}},
  }
  \matrix [matrixstyle, matrix anchor=north west] at (0,0) (m1)
  {
    \node[align=center]{B};&\node[align=center]{QT[q]};&\node[align=center]{OBJ[p]};\\
    &(1)(+ $a\rm (y)$ $b\rm (y)$ $t_1\rm (y)$)&\\
    &(2)(- $c\rm (y)$ $d\rm (y)$ $t_2\rm (y)$)&\\
    &(3)(* $t_1\rm (y)$ $t_2\rm (n)$ $t_3\rm (y)$)&\\
    &(4)(- $a\rm (y)$ $t_3\rm (n)$ $t_4\rm (y)$)&\\
    &(5)(/ $t_1\rm (n)$ 2 $t_5\rm (y)$)&\\
    &(6)(+ $t_4\rm (n)$ $t_5\rm (n)$ $x\rm (y)$)&\\
    &\ldots&\\
  };
  \matrix [matrix2style,matrix anchor=north west,xshift=-.75em] at (m1.north east) (m2)
  {
    RDL&SEM\\
    \node[minimum height=14.22em]{};&\node[minimum height=14.22em]{};\\
  };
\end{tikzpicture}